Light and Dark Keyblades

First read this little excerpt from Xehanort Report #6:

"Dark keyblades exist in the world of darkness and are in opposition to
the keyblades of light that we use, the only difference is from which
side of the world they come from."

This says that to every keyblade of light, a keyblade is darkness is made in the dark realm.

Now look at this screenshot from KH2:


The "He" that Yen Sid is talking about is Mickey and the dark realm's keyblade is the Kingdom Key D, which, as we know, is the opposite of Sora's Kingdom Key, which are both shown below.











So what I got to thinking was that in order to lock the door to Kingdom Hearts, or maybe even to open it, like they do in Kingdom Hearts 2, you need the keyblade born of light and the keyblade born of darkness, like these two are.

What do you think? Whatever you've got to say, post in the comments. Make sure to come back tomorrow for another thought provoking article AND go vote in the pole! Thanks for readin'!